Question

what do you mean by unicellular and multicellular

Answer 1

Unicellular means - The organisms having or containing only one cell
Multicelluar means -The organisms containing mote than one cell

Answer 2

unicellular mean an organism which is having only single cell. And multicellular means an organism which is having more than single cell
EXAMPLES - Unicellular - amoeba
multicellular - human being